Collotype or similar printing machine.



No. 663,864. Patented Deb. I8,vl900.'

A. CUE. CULLOTYPE 0R SIMILAR PRINTING MACHINE.

(Application filed Aug. 18, 1899.)

4 Sheets-Sheet (No Model.)

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Patented Dec. 18, I900.

A. CUE. COLLOTYPE QB SIMILAR PRINTING MACHINE.

(Application filed Aug. 18, 1899.)

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No. 663,864. Patented Dec. l8, I900;

. 'A. CUE. CULLOTYPEDRSIMILAB PRINTING MACHINE.

(Application filed Aug. 18, 1899.)

(No Model.) 4 Sheets-Sheet ,3.

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No. 663,864. Patented Dec. l8, I900. A. 60E. C OLLOTYPE 0R SIMILARPRINTING MACHINE.

(Application filed Aug. 18, 1899.)

4 Sheets-Sheet 4.

(No Model.)

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ALFRED COE, OF BRADFORD, ENGLAND.

COLLOTYPE OR SIMILAR PRiNTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 663,864, dated December18, 1900.

Application filed August 18; 1899. Serial No. 727,692. (No model.)

To all whom it may concern:

Be it known that I, ALFRED COE, a subject of the Queen of England,residing at Church Bank, Bradford, England, have invented a certain newand useful Improvement in Collotype or Similar Printing Machines, ofwhich the following is a specification.

This invention relates to improvements in apparatus or machines for thatclass of printing in which it is necessary to apply two inks ofdifferent consistency, such as what is generally known ascollotype-printing, and its primary object is to increase the speed.

To fully describe my invention, reference is made to the accompanyingsheets of drawings, forming a part of this specification, in whichsimilar figures of reference indicate corresponding parts in each of theviews.

Figure 1 is a side elevation of my improved machine. Fig. 2 is a planview of the same. Fig. 3 is a view of the feed end of the machine, andFig. 4 is a view of the opposite end. vIn the three latter figures thefeed-table and the top inking-slab, hereinafter referred to, areomitted, so as to show the parts beneath. Fig.5 is a detail elevation,and Fig. 6 a detail plan, of the means for rotating, shaft 47. Fig. 7 isa central longitudinal section of the machine.

While I have referred to two inks, in reality the same ink is used forboth sets of rollers; but as the ink is mainly supplied to the secondinking-rollers, at any rate when the machine is in full operation, fromthe 00110- type-plate itself and becomes thinner by working it isgenerally termed the thin inking.

Strictly speaking, it would be betterto define the machine as a machinein which two sets of inking-rollers are employed of different material.The first rollers are generally covered with leather, and gelatin orindia-rubber rollers are generally used for the second inking.

The cylinder 2 is arranged and operated in a similar manner to anordinary cylinder printing-machine. It only rotates when the carriage ismoving in one direction, and the sheet is fed by hand at thecommencement of this stroke and is taken off as soon as it has passedbeneath the cylinder.

To carry out my invention I employ an ordinary cylinder 2, fit-ted withthe usual grippers for'laying hold of the paper, which is fed onto afeed-table 3 and the front edge passed between the grippers before theyare closed in the ordinary way. The cylinder 2 is actuated by itsspur-wheel 4t engaging the rack upon the reciprocating carriage 6,having an inking-slab 7 at the feed end charged with ink for the secondor light inking and a slab 8 at the other end charged with ink for thefirst inking. The carriage is reciprocated in guides 9 in the sideframes 10 by the Vibrating arm 12, the upper end 13 of which is pivotedbetween the lugs 14 14 on the carriage and its lower end is pivoted tothe arm 15 on the rocking shaft 16 below. The arm 12 is reciprocated bythe arm 11, to which it is coupled by the connecting-rod 17. The arm 11is rigidly mounted upon a rocking shaft 18, which is rocked in onedirection by the antifrictionroller 19 on the arm 11 engaging the cam 20on the shaft 21, and it is rocked in the reverse direction by the cam 22on the same shaft engaging the antifrietion-roller 23 on the arm 24,also rigidly fixed upon the shaft 18. Instead of employing two cams abox-cam may be used to engage the roller 19 and reciprocate the carriagein both directions. In any case the cams are constructed to give a dwellin the movement of the carriage at both ends of its stroke sufficientlylong enough in dura tion to allow the inking-rollers to pass over theplate while it is stationaryin the manner hereinafter described.

The plate is fixed by quoins or wedges in a metal holder which fitsbetween the inking slabs 7 and Sand is capable of vertical adjustment bythe corner-screws 25, upon which it rests. The first inking-rollers 26are mounted in slides 27 on each side, which are reciprocated in thegrooves 28 in the top of the frames by the links 29, coupling them tothe top of the arms 30, mounted upon the rocking shaft 31 and vibratedby the connectingrods 32, connecting them to the cranks 33 upon theintermit-tently-rotated shaft 34. The broken lines and 30 Fig. 1,represent the arms 30 in mid-stroke and at the opposite end of theirstroke. The shaft 34 is operated by the sector-wheel 35 on the shaft 21engaging the wheel 36, and a plain part 37, free from teeth, is providedupon such sector-wheel to engage the locking-piece 38 on the wheel 36and hold such wheel stationary until the plain piece is passed. Thewheels are so arranged that when the dwell takes place the rollers 26are close up against the cylinder 2. When the plate passes from beneaththe cylinder on that side, it receives its first inking by passing incontact with the rollers 26, then lying close to the cylinder. Duringthe dwell at the end of this stroke of the carriage the arms 30 arevibrated and the rollers are passed to and fro over the plate and arethen brought to rest again close to the cylinder and the carriage againmoves the plate .beneath them. When the plate appears on the other sideof the cylinder, the rollers 40 for the second in king move toward it,and by the time the plate is brought to rest at the opposite end theyhave moved completely over it and are close against the cylinder. Whilethe plate dwells at this end the rollers 40 are passed quickly to andfro over it, and when the plate commences its return movement therollers move slowly over it and back onto their inkingslab 7.

The rollers 40 are mounted in slides 41, working in the guides 28, andare coupled by the links 42 to the top of the arms 43 on the rockingshaft 44. The arms 43 are vibrated by the continuously but variablyrotating cranks 45, coupled to them by the connecting-rods 46. The shaft47, upon which these cranks are fixed, is variably rotated by thearrangement separately shown in elevation in Fig. 5 and in plan by Fig.6. The sectorwheel 50 on the shaft 21 engages the spurwheel 51 on theshaft 47 and drives it to impart the slower motion thereto; but as soonas the sector 50 disengages the Wheel 51 the sector 52 engages thepinion 53 on the shaft 47 and imparts a complete revolution to it at anincreased speed before it becomes disengaged therefrom and the sector 50and the wheel 51 again become engaged. The rollers 40 are shown atmid-stroke, and the broken lines 40 and 40, Fig. 1, represent the arms43 at each end of their stroke.

Jockey-rollers and distributing-rollers 61 are preferably mounted overthe rollers 26, and these are arranged at each stroke to come in contactwith an inverted inking-slab 62,

supported by the adjustable studs 63 from the attachments 64,secured tothe side frames.

A flexible mask is used, and it is not attached to the cylinder, but issupported upon a flexible band 70, Fig. 1, on each side. The ends ofthese bands are connected to two spring-rollers 71 and 72, fitted withinternal spiral springs under torsion, and the spring of the roller 71is either stronger or is under greater torsion than that of the roller72. Flexible bands 73 are also Wound upon the roller 71 in the oppositedirection to the bands 70, and their free ends are carried around theguide-pulleys 75 and connected to the end of the carriage 6. When thecarriage travels in the direction of the arrow, Fig. 1, the bands 73turn the roller 71 in the direction of its arrow. Consequently the'bands are unwound off 71 and arewound onto the roller 72, thus carryingthe mask with it; but on the reverse movement of the carriage the bands73 are free to move with it and are rewound on the roller 71, and at thesame time the bands 70 are drawn off the roller 72 and wound onto 71 byreason of the stronger spring of the latter, thus moving the mask at thesame speed as the carriage and cylinder.

The side frames 10 are connected together by stays 80. The shaft 21 isdriven by its spur-wheel 8.2 engaging the pinion 83 on the driving-shaft84.

I claim- 1. In a printing-machine of the type specified the combinationwith a reciprocating plate-carriage having an inking-slab at each endand reciprocated in such a way that there is a period of rest at eachend of its stroke, of inking-rollers constructed and arranged to moveover the plate each time it is brought to rest, substantially as hereinshown and de scribed.

2. The combination with the reciprocating inking-rollers ofjockey-rollers and distributin g-rollers and an inverted inking-slabagainst which they come in contact while being reciprocated over theplate.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

ALFRED 00E.

Witnesses:

DAVID N OWELL, SAMUEL DRAOUP.

